Compression Springs As Specified In EN - KISSsoft AG
Compression Springs As Specified In EN - KISSsoft AG
Compression Springs As Specified In EN - KISSsoft AG
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2 Analyzing <strong>Compression</strong> <strong>Springs</strong><br />
2.1 Task<br />
To analyze a cold formed compression spring 4 x 40 x 235 made of spring steel. Search for this<br />
data:<br />
Spring rate R<br />
Shear stress ô k2 at F 2 =300N<br />
Spring travel s h<br />
This tutorial then describes how you input the following data:<br />
Wire diameter d 4.0 mm<br />
Coil diameter D 40.0 mm<br />
Effective coils n 12.5 mm<br />
Spring length L 0<br />
235.0 mm<br />
Material<br />
Wire C (DIN 17223-1), untreated<br />
Ends of spring<br />
Even<br />
Tolerances DIN 2095 quality standard 1<br />
Table 2.1<br />
Geometry.<br />
Spring force F 1<br />
150 N<br />
Spring force F 2<br />
300 N<br />
Operating temperature 20.0 °C<br />
Stress<br />
dynamic<br />
Support<br />
fixed/ fixed<br />
Table 2.2<br />
Operating data.<br />
2.2 <strong>In</strong>putting operating data<br />
<strong>As</strong> shown below, you can input operating data directly in the input window. Here you can input<br />
either the forces or the ways.<br />
Figure 2.1<br />
<strong>In</strong>put window, "Operating data" group.<br />
The types of support are displayed in a help graphic that you open by clicking next to the<br />
Support field. The support coefficient v is used for calculating the buckling spring travel sk. If<br />
the required level of buckling safety is not achieved, the spring must be led, otherwise it will<br />
buckle.<br />
If the spring must be led, the <strong>KISSsoft</strong> system issues a warning message when you perform<br />
the calculation to inform you of this fact.<br />
2 / 7 31 January 2011 Release 03/2011
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